1. Is the number 0.555, rational or irrational?

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

Use the formulas a = x 2 – y 2, b = 2xy, c = x 2 + y 2 to answer this question. one leg of a right triangle has length 11 and all sides are whole numbers. find the lengths of the other two sides. the other leg = a0 and the hypotenuse = a1

What is the total surface area of this square pyramid?